Tension device



Jan. 2, 1923,.

1,441,401 11... J. 0. McKEAN.

TENSION DEVICE. 'mzo ran. 4, 1922.

Patented Z,

@FFECIZ.

JOHN D. MGKEAN, 0F WES'IFIELD, MASSACHUSETTS, ASSIGNOE T0 MACHINE 7COMPANY, OF WES'EFIELD, TEASSACHUSETTS, A CORPOBATIGN OF MASSACHUSETTS.

TENSION DEVICE.

Application filedFebruary 4, 1922. Serial No. 534,145.

To (/JZ 107M772, it may concern Be it known that I, Join O. Molina acitizen or" the United States, and resident of Westiield, in the countyof Ha-mpden and State of Massachusetts, have invented a new and useiiulImprovement in Tension Devices, of which the "following is aspecification.

In drawing yarn from the bobbin over the head there is a tendency forthe yarn to kink as it leaves the bobbin. This: is especially true wherethe yarn has a particularly hard wind or twist. p

The object oi? my invention is to provide a tension device which willcoa'ct with the bobbin to prevent the kinking of: the yarn as it isdrawn from. the bobbin over the head of the bobbin.

The object of my invention more particularly is toprovide a gravityoperated tension device which will press against the bobbin head,between which tension device and the bobbin, the yarn will be caused topass as it is drawn from the bobbin, it being understood that the bobbinis held stationary.

A practical embodiment oi my invention is represented in theaccompanying drawings, in which- Fig. 1 represents so much of a windingmachine as will illustrate my invention.

Fig. 2 reprggents a section taken in the plane of the line IIII of Fig.1.

Fig 3 represents an end view of one of the bobbins and tension devicewhch coacts therewith.

The bobbin holder comprises a bracket, two arms 1 and 2 of which embracea bar 3 of the machine. A set screw 4- may be used for adjustablysecuring the bracket to the said bar 8. This bracket is provided with athird arm 5 from which project two substantially parallel pins 6 and 7.In the present instance these pins project diagonah ly upward from thebracket and the stationary bobbin 8 is mounted against rotation on thepin 7.

The tension device which I have shown herein comprises a sleeve 9 whichis adjustable along the pin 6 and also rot-atively adjustable thereon soas to enable it to be fixed in any desired longitudinal and rotativeadjustment with respect to the bobbin. A set screw 10 may be providedfor clamping the sleeve 9 in its adjusted position. This sleeve 9 isprovided with two cars 11 and 12 arranged to receive the free ends of agravity operated U-shaped element 13, whereby the element is pivoted tothe sleeve. Tlhis element may be removed from the sleeve by springingits tree ends out of their pivotal engagement with the ears 11- and 1:2.

' This gravity operated element 13 presses lightly against the bobbinhead and the yarn as it is drawn from the bobbin over the head is causedto pass between this gravity operated element and the bobbin, thus notnot only preventing the tendency of the yarn to kink at this point, butalso serving to exert a slight tension. on the yarn.

The pin 6 may be developed into a yarn guide 1% beyond the bobbin head.

It is evident that various changes in the construction, form andarrangement oi the several parts may be made without, departingfrom thespirit and scope of my invention; hence do not wish to limit myself tothe particular embodiment herein represented, but,

What I claimis 1. A bobbin holder, and a gravity operated tension devicearranged to coact with the bobbin to prevent the kinking of the yarn asit is drawn from the bobbin over the head of the bobbin.

2. A bobbin holder, and a gravity operated tension device arranged topress against the bobbin head, between which ten sion device and bobbinhead the yarn passes as it is drawn from the bobbin over the head of thebobbin, to prevent the kinking of the 3. A bobbin holder, a gravityoperated tension device arranged to coact with the bobbin to prevent thekinking of the yarn as it is drawn from the bobbin over the head of thebobbin, and a support for the tension device, carried by the bobbinholder.

4. A bobbin holder, a gravity operated tension device arranged to pressagainst the bobbin head, between which tension device and bobbin headthe yarn passes as it is drawn from the bobbin over the head of thebobbin, to prevent the kinking of the yarn, and a support for thetension device, carried by the bobbin holder.

5. A bobbin holder comprising a bracket, 3. pin projecting therefrom, asecond pin projecting from the bracket alongside of the bobbin, and atension device carried by the second pin and arranged to coact with thebobbin head to prevent the kinking of the yarn as it is drawn fromthebobbin over the head of the bobbin.

6. A bobbin holder comprising a bracket,

a pin projecting therefrom, a second pin projecting from the bracketalongside of the first named pin, and a'gravity operated tension devicecarried by the second pin and arranged to coact With the bobbin head towhich tension device and bobbin. head the yarn passes as itis drawn fromthe bobbin over the head of the bobbin, to prevent the kinking of theyarn.

8. A bobbin holder comprising a bracket, a pin projecting therefrom, asecondpin projecting. from the. bracket alongside of the first namedpin, and a gravity operated tension device carried by the second pin andarrangedto press against the bobbin head, between which tension deviceand bobbin head the yarn passes as it is drawn from the bobbin over thehead of the. bobbin, to. prevent the kinking of the yarn.

9. A bobbin holder, and a tension device having a gravity operated.removable. element. arranged to coact with the bobbin to prevent thekinking} of the yarn as it is drawn from the bobbin over the head of thebobbin.

10. A bobbin holder, and a tension device having a gravity operatedremovable element arranged to press against the bobbin head, betweenWhich element and bobbin head, to prevent the kinking of the yarn as itis drawn from the bobbin over the head of the bobbin.

12. A bobbin holder comprising a bracket,

a pin projecting therefrom, a second pin a developed into a yarn guide,and a tension device carried by the second pin comprising a sleeveadjustable along the pin, and.

a gravity operated removable element arranged to coact with the bobbinhead, to prevent the kinking of the yarn as it is drawn from the bobbinover the head of the bobbin. I

In testimony, that I claim the foregoing as my invention, I have signedmy name Feb, 1922.

this second day of o 1 JOHNO. MoKEAN.

